A fourth man has been arrested in connection with the fatal shooting of Trinity Gay, the 15-year-old daughter of Olympic sprinter Tyson Gay.

Trinity Gay was fatally shot in a Lexington, Kentucky, parking lot around 4 a.m. Sunday during an exchange of gunfire between two cars, Lexington police said. The teen wasn't in either car, police said.

Today, 20-year-old Lamonte Williams was arrested in connection with the fatal shooting. He is charged with wanton endangerment.

The three men earlier arrested in connection with the shooting were Dvonta Middlebrooks, 21, who was charged with wanton endangerment and possession of a firearm by a convicted felon, and Chazerae Taylor, 38, and his son, D'markeo Taylor, 19, who were both charged with wanton endangerment as well.

Police said today that all four men "fired multiple gunshots at the time of the incident."

Middlebrooks, Chazerae Taylor and D'markeo Taylor all pleaded not guilty this week. Williams has not yet entered a plea. He is scheduled to appear in court on Thursday at 1 p.m.

Police said today the investigation is still active and "in the early stages." Anyone with information about the case is asked to call the police.

Olympic sprinter Tyson Gay, who is from Kentucky, has competed in the past three Summer Olympics. According to The Associated Press, his daughter was an accomplished sprinter herself and placed in several events at the Kentucky state championship in May.

At a vigil for the teen Monday night at her high school, her father addressed a crowd of thousands from the school track, thanking them for their support and advocating for the end of "senseless" violence.

"I don't want to read in the paper next week about another senseless killing," Tyson Gay said, according to ABC affiliate WTVQ in Lexington. "It has to stop."